Polymarket Google Login Not Working? Urgent Dec 2025 Security Alert

If you are experiencing issues with your Polymarket Google or email login, it is critical to address this immediately. A major security event occurred in late December 2025 involving the platform’s third-party authentication systems, leading to login failures and, in some cases, unauthorized account activity.

The Dec 2025 Security Breach: What Happened

Between December 22 and December 25, 2025, Polymarket confirmed that a “small number” of user accounts were compromised due to a vulnerability in an external authentication provider. While Polymarket’s core smart contracts remained secure, the login bridge—specifically impacting those who signed up via Google or Magic Link—was exploited.

• The Issue: Attackers bypassed security protocols to access accounts, close active positions, and drain USDC balances.
• Current Status: On December 24, 2025, Polymarket announced the flaw had been “fully remediated.” However, many users are still reporting login “loops” or finding their accounts temporarily frozen as a safety precaution.

Immediate Troubleshooting Steps

If your Google login is currently failing or showing an error, follow these steps to regain access safely:

1. Perform a “Hard Refresh”: Your browser may be storing a corrupted or “vulnerable” session token. Press Ctrl + F5 (Windows) or Cmd + Shift + R (Mac) while on the Polymarket login page.
2. Check the Discord Support Hub: Polymarket is using their official Discord to handle the influx of support tickets. If you cannot log in, join their server and check the #support or #announcements channels for real-time updates on account restorations.
3. Audit Your Transactions: If you manage to log in, immediately check your “Activity” tab. Look for unauthorized “Proxy” calls or withdrawals to unknown Polygon addresses.
4. Verify Your Email Security: Even though the breach was on the provider’s end, ensure your primary Google account has Advanced Protection or a hardware security key (like a YubiKey) enabled for 2026.

Comparison: Login Security Levels

To prevent future lockouts or breaches, consider moving your Polymarket balance to a more secure connection method:

Moving Forward: The “Non-Custodial” Shift

The December breach has highlighted the risk of “convenience” logins in Web3. For the “Polymarket Bro” community, the consensus for 2026 is clear: Migrate to a browser extension wallet.

Security Note: If your account was drained during this event, Polymarket has stated they will contact impacted users directly. Do not follow “recovery” links sent via X (Twitter) or Telegram, as scammers are currently targeting victims of the breach with fake refund sites.